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They stepped into the fray, and one result was the. These could only be overcome if highly specialized and modified AK-47 magazines were used. A major reason for the lack of take-up by shooters came with feeding issues. It has to be said that this did not meet with much success.Īn example, the 7.62x39mm cartridge (as was the 6.8 SPC and Grendel). It was no secret that Colt Firearms, along with other ammo makers, had previously attempted to chamber AR-style rifles for. So what was the response of ammunition manufacturers to a potentially highly lucrative market? This platform is based on the AR-15, which is the most popular civilian rifle out there. 300 Blackout was based on military use with the M4 rifle. 300 Blackout’s superior performance over a cartridge that was previously classed as “Gold Standard.” But What About The AR-15 and.
#300 BLACKOUT SUBSONIC LOADS FULL#
This allowed the use of the existing M4 magazines to their full capacity. 300 AAC Blackout because the case used was built from the existing 5.56mm cartridge. 30 caliber round that was compatible with the M4 weapon system. However, they were aware that this alone would not justify the complete replacement of the military’s primary M4 battle rifle. Their aim was to increase the terminal performance offered by a. While the 5.56 NATO round was (and still is) a proven and effective cartridge, ammunition developers wanted more.
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30 caliber cartridge that performed better than the 5.56mm currently used by U.S. While this work began in 2009, the majority of it was carried out during 2010. We Have Everything You Ever Wanted to Know about Ammo!Īdvanced Armament Corporation (AAC) developed the.1 Federal Premium Full Metal Jacket Boat-Tail.1 Hornady 300 Blackout 125gr HP 50/Box – Best.300 AAC Blackout 150 grain – Best Soft Point Centerfire Rifle Ammo Even the lightweights can stick if the charge is too light and the difference between 1000fps and stuck isn't a lot by weight as you work. Going the other way is an invitation to a stuck bullet. When you work up your loads start with a charge that you know will be supersonic and work your way down to subsonic. I know of guys running 110-125 subs in the blackout but they are using much faster powders like unique, blue dot and even as fast as bullseye. AA1680, 4227, 2400 and others in that burn rate range seem to work really well for the heavier bullets like the 220-240 gr in the 300 though they'll start getting a bit inconsistent with bullets much lighter. Lil'gun is better for supersonic stuff than subs in my experience. Its not a powder that likes much if any open space in the cartridge. Its not so much an issue of blowing things up though it is possible but more an issue of really poor consistency with velocity. H110 is a great powder for magnum pistol stuff when you can cram it in and compress lightly but its absolute crap for reduced charges. The charge weights get down into the very small range and you need to use faster powders. While you can use any bullet weight you want it gets less and less simple to work up loads as you go lighter.